Nozzle



March 6, 195i M. J. KUNERT 2,544,556

N OZZLE Filed Jan. 5l, 1949 nventor Gitornegs Patented Mar. 6, 1951 UNITED STATES PATENT oFElcE NOZZLE Max J. Kunert, Kansas City, Mo., assignor to Black, Sivalls & Bryson, Inc., Kansas City, Mo.,

a corporation of Delaware` Application January l31, 1949, serial No. 73,723

1 Claim. l

This invention relates to a nozzle for dispensing liquids from a hose such as used in lling stations ior dispensing gasoline into the fuel tank of a motor vehicle and has fo-r its principal objects to provide a nozzle of this character that is of simple and inexpensive construction; to provide a nozzle with a trigger-operated valve which is leak-proof in that the valving element is operated by the trigger lever through a flexible diaphragm; lto provide the nozzle with guides for retaining the valving element in alignment with its seat; and to provide the nozzle with means for limiting movement of the valve in opening direction and thereby save overstressing of the diaphragm.

In accomplishing these and other objects of the invention hereinafter pointed out, I have provided improved structure, the preferred form of which is illustrated in the accompanying drawing wherein:

Fig. 1 is a longitudinal section through a nozzle constructed in accordance with the present invention, the valve being shown in unseated or open position.

` Fig. 2 is a similar section showing the valve in seated position for interrupting now through the nozzle.

Fig. 3 is an enlarged perspective view of the valve element, diaphragm and actuating pin.

Referring more in detail to the drawings:

I designates a nozzle constructed in accordance with the present invention and which includes a substantially tubular body or handle portion 2 having an integral collar 3 internally threaded as at 4 for mounting a nipple 5 to which a hose 6 is connected. The opposite end of the tubular body joins with` a transversely arranged valve housing portion 1 internally threaded at the ends as indicated at 8 to receive closure plugs 9 and IU. Extending transversely within the housing 1 substantially in line with the bottom of the tubular portion 2 is a partition il dividing the cylindrical section into a valve chamber I2 connected with the flow passageway I3 of the tubular section 2 through port I4 and an outlet chamber I5 that is connected with an outwardly and downwardly curved nozzle portion I6 carrying a spout I1. The partition I I is provided with a port I8 encircled by a bevelled seat I9 for seating a valving element 2!) to close and open ow through the nozzle as later described.

The plug 9 has an exterior boss 2l which is recessed on the underside to provide a socket 22 for a cylindrical stem 23 of the valving member 20.

2 To provide a positive leak-tight connection around the plug, it is turned against a gasket 24 that is carried on an internally extending ange 25. The opposite plug I9 is of similar construction and has a guide recess 23 coaxial with a guide opening 2l in which is mounted a pin 28 having a flanged head 29 reciprocable in the re= cess 26. The plug I0 cooperates with an internal annular shoulder 39 to clamp the marginal edge of a exible diaphragm 3l therebetween whereby the diaphragm prevents leakage from the nozzle. Extending inwardly from the shoulder 33 is an annular guide flange 32 forming an opening 33 for slidably guiding a head 34 on the valving member as later described. The plug and flange are recessed on the respective sides of the diaphragm as indicated at 35 and 3S to allow ample movement of the diaphragm upon actuation of the pin as later described. The ange 32 is provided with a vent opening 31 to prevent trapping of liquid on top of the diaphragm.

The valving member includes an annular disklike portion 38 coaxial with the guide stem 23 and has a beveled face :t9-provided with an annular groove 40 for mounting a resilient valve ring 4i adapted to engage the bevel seat I9 previously described, The outlet side of the valving element has a stem 42 that connects with the head 34. The valving member is normally retained in seated position by a coil spring 43 that encircles the guide stem 23 and has one end bearing upon the disk portion 38 of the valve and its opposite end against the plug 9. The guide stem 23 is of suiiicient length so that when the valve is seated the upper end retains its guided relation in the socket 22 and the socket is of a depth to allow ample movement of the valve and provide stop engagement for limiting opening movement before the diaphragm contacts the guide ange 32 so as to save overstressing of the diaphragm. This is effected by locating the bottom of the socket 22 which forms the stop a' less distance from the stem 23 than the space between the upper face of the diaphragm and the guide flange 32. When the valve is seated the head 34 of the valving member is retained in contact with the inner face of the diaphragm 3| as shown in Fig. 2 and the flanged head 29 of the pin 28 is retained in engagement with the opposite side of the diaphragm by means of a trigger lever 44 that is pivotally secured by a pin 45 with a depending ear 46 on the underside of the nozzle portion I6. The lever 44 extends downwardly from its pivotal connection to provide a seat 41 for the outer end of the pin 28. From the seat 41 the lever In assembling the valve elementV 20-withinithefV nozzle, the diaphragm 3l is inserted through the open end of the housing portion 'l so that thef.l

marginal edge engages the annular shoulder 30, after which the pin 28 is inserted through the opening in the plug I and: thehplug Imis enalignment with the seat and that the guide stem provides a stop so as to save overstressing of the diaphragm upon opening movement of the valving element.

What I claim and desire to secure by Letters Patent is:

A nozzle of the character described including va:lv'e`--'housingV provided with a, partition intermediate; outlet and inlet passagewaysthrough said nozzle, said partition having a port encircled by' a Valve seat on the side of the inlet passageway, a Valving member for said seat having a guide stem on the seating side of the valving memberandla stemacarrying a guide head on the eased with the threads ofthe housing* portionv a"` unseat-ingside,A Ya'sprmg normauy retaining the to clamp the diaphragm 3| in sealing contact'- with the shoulder 30. The coilspringfB is sleeved'. over the guide stem of the valving element and the head 34 of the valving element is inserted:A

is-.grippedinthe palm of the; handwith the; 1in.-A

gerszpassing under the. finger grip-portion. 4'8 oi` thel lever` Allv to rock.. the lever and?eiect'rnove-l mentmf-the actuating pin 28vagainst1 the diaphragm 31 whichvflexes the diaphragm in` an. inward direction to move thei head Ze'throug-h the guidel openingrss' and 'eectunseati'ng of'I thefvalvevdi'skr 38= against action ot thevspring-ll.

The flow isz-then established from thefhoseI through the `valveport lfias shown in Fig. 1l;

Upon release of thenger pressure-onv the trigger lever 44, the spring 63"returns the' valve to seated position and shuts off flow through thef nozzle From the foregoing it* is obviousA that I have` provided a nozzle that is'of` simple' and inexpen? sive constructionY thatk is` leakproo' withoutthe` use of theA conventional packing byreasonof` theL4 diaphragm seal. betweenzth'eactuatingpin andl the head ofgthe valvinggmember'.' Itzi's alsco'b-, viens that the valvi'ng; velement is. securely 'guidi edi within .the nozzle so' as' Atoretain it; in axiai' valve inseated position, said housing having guides for.l said stem and head respectively, a diaphragm extending across said head and havingfit'sl periphery in sealed engagement with the valve housing, said diaphragm being spaced from saidV head guide; a diaphragm actuating member engagingthe opposite side of the diaphragm, and-y an operating lever pivotally mounted on the noz-v zleand engaged with the diaphragm actuating? 5' member to eiect unseating of the valving mem=- REFERENCES CITED The following references are of' recordinith'e le of this' patent:

UNITED STATES PATENTS Number Name Date 1,032,470 D'enneen'et al July 16;,1'912'2 1,311,815 Harris July'29, 1915i4 1,508,070 Rosen Sept'. 9,1924" 1,585,332? Eickm'a'n' Ma'y`"18`,i1926, 1,671,178 Cohen" May '29,',I928 1,713,102

Stedwell May 14, 1929" 

